Finding the Fourth Proportional to 8,775,680.70, 13,163,521.05 and 3,992,711.70
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Solution
The fourth proportional to 8,775,680.70, 13,163,521.05 and 3,992,711.70 is: 5,989,067.55
Step by Step Solution
- Step 1: Write the proportion equation
8,775,680.70 : 13,163,521.05 = 3,992,711.70 : x - Step 2: Convert to fraction form
8,775,680.70/13,163,521.05 = 3,992,711.70/x - Step 3: Cross multiply
8,775,680.70x = 13,163,521.05 × 3,992,711.70 - Step 4: Simplify right side
8,775,680.70x = 52,558,144,509,531.29 - Step 5: Solve for x
x = 52,558,144,509,531.29/8,775,680.70 - Step 6: Final answer
x = 5,989,067.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.